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Loans Payable - Note 6 - MINOSA 2 - Additional Information (Detail) |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 10, 2017 USD ($) Days $ / shares | Oct. 01, 2016 USD ($) Days $ / shares | Mar. 18, 2016 USD ($) Days $ / shares | Dec. 31, 2017 USD ($) shares | Apr. 30, 2017 $ / shares | Mar. 21, 2017 USD ($) | Mar. 11, 2015 USD ($)
Minosa Purchase Agreement [Member] | Loans Payable [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Debt , maximum borrowing capacity | $ 3,000,000 |  |  |  |  |  |
Amount of loan outstanding | 2,700,000 |  |  |  |  |  |
Epsilon Acquisitions, LLC [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Aggregate amount issuable |  |  | $ 6,000,000 |  |  |  |
Epsilon Acquisitions, LLC [Member] | Notes Payable, Other Payables [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Amount of loan outstanding |  |  |  | $ 1,000,000 |  | $ 2,000,000 |
Debt conversion amount | 2,000,000 |  |  | 2,000,000 |  |  |
Interest rate, stated percentage |  | 10.00% | 10.00% |  |  |  |
Number of trading days | Days |  | 75 | 75 |  |  |  |
Conversion price of Notes | $ / shares |  | $ 5.00 | $ 5.00 |  | $ 5.00 |  |
BCF amount recorded |  |  |  | 96,000 |  |  |
Aggregate amount issuable |  | $ 3,000,000 | $ 3,000,000 |  |  | 6,000,000 |
Debt conversion into equity |  |  |  | 3,000,000 |  | $ 3,000,000 |
Security deposit liability |  |  | $ 54,000,000 | 54,000,000 |  |  |
Epsilon Acquisitions, LLC [Member] | Second AR Epsilon Note [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Amount of loan outstanding |  |  |  | $ 1,000,000 |  |  |
Note 6 - MINOSA 2 [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Debt instrument, threshold payment term |  |  |  | 60 days |  |  |
BCF amount recorded |  |  |  | $ 62,925 |  |  |
Debt Instrument, acceleration clause description |  |  |  | The obligations under the Minosa Note may be accelerated upon the occurrence of specified events of default including (a) our failure to pay any amount payable under the Minosa Note on the date due and payable; (b) our failure to perform or observe any term, covenant, or agreement in the Minosa Note or the related documents, subject to a five-day cure period; (c) the occurrence and expiration of all applicable grace periods, if any, of an event of default or material breach by us under any of the other loan documents; (d) the termination of the SPA; (e) commencement of certain specified dissolution, liquidation, insolvency, bankruptcy, reorganization, or similar cases or actions by or against us, in specified circumstances unless dismissed or stayed within 60 days; (f) the entry of a judgment or award against us in excess of $100,000; and (g) the occurrence of a change in control (as defined in the Minosa Note). |  |  |
Debt instrument, number of shares | shares |  |  |  | 100,000 |  |  |
Minimum aggregate offering price |  |  |  | $ 3,000,000 |  |  |
Note 6 - MINOSA 2 [Member] | Stock Purchase Agreement [Member] | Promissory Note [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Aggregate amount issuable |  |  |  |  |  |  | $ 14,750,000
Note 6 - MINOSA 2 [Member] | Loans Payable [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Amount of loan outstanding | $ 4,700,000 |  |  |  |  |  |
Interest rate, stated percentage | 10.00% |  |  |  |  |  |
Debt instrument, threshold payment term | 60 days |  |  |  |  |  |
Number of trading days | Days | 75 |  |  |  |  |  |
Conversion price of Notes | $ / shares | $ 4.41 |  |  |  |  |  |
Note 6 - MINOSA 2 [Member] | Notes Payable, Other Payables [Member] |  |  |  |  |  |  |
Shares Issued And Outstanding [Line Items] |  |  |  |  |  |  |
Amount of loan outstanding |  | $ 2,000,000 |  |  |  |  |

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